subnet.im

AS42772Unitary enterprise A1

BelarusRegistryRIPE NCCTypeEyeball

As of 10th November 2026, AS42772 (Unitary enterprise A1), an access network registered in Belarus with RIPE NCC, originates 385 IPv4 prefixes covering 371k addresses and 20 IPv6 prefixes. By IPv4 address space that makes it the 860th-largest of the 80,723 networks we see originating IPv4, and the 2nd-largest of 107 in Belarus. It is seen behind 4 upstream networks, most often AS12406 (Business Network Ltd) and AS60330 (Belarusian Cloud Technologies LLC), and in front of 10 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

385

IPv6 prefixes

20

IPv4 addresses

371k

IPv6 /64s

26.8B

Upstream graph

The networks AS42772 is seen behind, one and two hops out, drawn from real AS paths.

AS42772Toward the internet core
Upstream graph for AS42772: 7 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS42772Unitary enterpris…This networkAS6697BeltelecomAS12406Business Network …AS60280National Traffic …AS60330Belarusian Cloud …AS12389PJSC RostelecomAS9002RETN LimitedAS6939Hurricane Electri…

Networks observed one and two hops upstream of AS42772 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

28

adjacent networks

Upstreams
414%
Peers
1450%
Downstreams
1036%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS42772
NetworkCountryRelationshipPathsVantage pts
AS12406Business Network LtdBYPeer28,486138
AS60330Belarusian Cloud Technologies LLCBYPeer2,881137
AS6697BeltelecomBYPeer1,80673
AS60280National Traffic Exchange Center (Belarus)BYPeer4042

Prefixes

All 405

The largest blocks AS42772 originates, widest first.

Largest prefixes originated by AS42772
PrefixAddressesVisibility
37.17.0.0/1732.8k76/76
178.163.128.0/1732.8k76/76
128.65.0.0/1816.4k76/76
151.249.128.0/1816.4k76/76
37.17.64.0/198.2k76/76
37.17.48.0/204.1k76/76
37.17.96.0/204.1k76/76
46.56.144.0/204.1k76/76
46.56.176.0/204.1k76/76
128.140.240.0/204.1k76/76

Routing health

How AS42772's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%405
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more99.8%404
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.2%1

Prefix sizes

IPv4 — 385 prefixes

IPv6 — 20 prefixes

  • /324.3B × /6430.0%6
  • /35537M × /645.0%1
  • /36268M × /645.0%1
  • /4016.8M × /6460.0%12

Recent changes

Announcements that started or stopped since 11th Oct 2026.

No announcement by AS42772 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.